The 20 best countries to live in, according to millennials

Capital: Tokyo

GDP: $4.9 trillion

Population: 127 million

Quality of life: 6.2

Capital: Buenos Aires

GDP: $610 billion

Population: 43 million

Quality of life: 1.2

Capital: Athens

GDP: $242 billion

Population: 11 million

Quality of life: 1.4

Capital: Singapore

GDP: $298 billion

Population: 5.5 million

Quality of life: 4.6

Capital: Vienna

GDP: $428 billion

Population: 8.5 million

Quality of life: 7.3

Capital: Luxembourg City

GDP: $60.1 billion

Population: 556,074

Quality of life: 6.3

Capital: Berlin

GDP: $3.7 trillion

Population: 81 million

Quality of life: 8.1

Capital: Lisbon

GDP: $227 billion

Population: 10.4 million

Quality of life: 3.5

Capital: Copenhagen

GDP: $336 billion

Population: 5.6 million

Quality of life: 9.2

Capital: Paris

GDP: $2.8 trillion

Population: 66.2 million

Quality of life: 5.5

Capital: Madrid

GDP: $1.4 trillion

Population: 46.4 million

Quality of life: 4.2

Capital: Dublin

GDP: $232 billion

Population: 4.6 million

Quality of life: 5.7

Capital: Washington, DC

GDP: $16.8 trillion

Population: 318.9 million

Quality of life: 5.4

Capital: London

GDP: $2.7 trillion

Population: 64.5 million

Quality of life: 7.3

Capital: Amsterdam

GDP: $854 billion

Population: 16.8 million

Quality of life: 8.5

Capital: Stockholm

GDP: $580 billion

Population: 9.7 million

Quality of life: 9.5

Capital: Wellington

GDP: $186 billion

Population: 4.5 million

Quality of life: 8.2

Capital: Rome

GDP: $2.1 trillion

Population: 61.3 million

Quality of life: 3.6

Capital: Ottawa

GDP: $1.8 trillion

Population: 35.5 million

Quality of life: 10

Capital: Canberra

GDP: $1.6 trillion

Population: 23.5 million

Quality of life: 9.1